SMS & Voice APIs · reliability comparison

Kaleyra vs Vonage Communications APIs: which is more reliable? (2026)

Kaleyra is more reliable than Vonage Communications APIs, scoring 100.0 vs 53.7 out of 100. Over the last 90 days Kaleyra reported 0 incidents and Vonage Communications APIs reported 24, with effective uptime of 100% and 99.10% respectively.

Data updated Nov 2, 2026 · How we score

Kaleyra

100.0/100

Operational

Visit Kaleyra ↗

Vonage Communications APIs

53.7/100

Degraded

Visit Vonage Communications APIs ↗
VS
MetricKaleyraVonage Communications APIs
Reliability score100.053.7
Rank (SMS & voice APIs)—#9
Uptime (90 days)100%99.10%
Incidents (90 days)024
Partial / major outages00
Avg time to resolve—10h 44m
Outages we detected00
Transparency score100/100100/100

Where Kaleyra and Vonage Communications APIs differ

  • Kaleyra reported no incidents in the last 90 days, while Vonage Communications APIs reported 24.
  • Kaleyra's longest outage on record lasted 4h 50m (Jul 1, 2026); Vonage Communications APIs's lasted 4h 36m (Jun 12, 2026).

90-day uptime

Kaleyra

Aug 5, 2026 – Nov 2, 2026: no incidents
90 days ago100% average daily uptimeToday

Vonage Communications APIs

Aug 5, 2026: 97.77% uptime, 1 incident (Degraded performance)Aug 6, 2026 – Aug 28, 2026: no incidentsAug 29, 2026: 90.46% uptime, 1 incident (Degraded performance)Aug 30, 2026: 85.00% uptime, 1 incident (Degraded performance)Aug 31, 2026: 93.46% uptime, 1 incident (Degraded performance)Sep 1, 2026 – Sep 3, 2026: no incidentsSep 4, 2026: 96.89% uptime, 1 incident (Degraded performance)Sep 5, 2026 – Sep 6, 2026: no incidentsSep 7, 2026: 99.03% uptime, 1 incident (Degraded performance)Sep 8, 2026 – Sep 20, 2026: no incidentsSep 21, 2026: 94.19% uptime, 2 incidents (Degraded performance)Sep 22, 2026: 86.94% uptime, 1 incident (Degraded performance)Sep 23, 2026: 92.27% uptime, 2 incidents (Degraded performance)Sep 24, 2026 – Sep 27, 2026: no incidentsSep 28, 2026: 99.36% uptime, 1 incident (Degraded performance)Sep 29, 2026: 99.30% uptime, 1 incident (Degraded performance)Sep 30, 2026: 97.09% uptime, 3 incidents (Degraded performance)Oct 1, 2026 – Oct 12, 2026: no incidentsOct 13, 2026: 91.07% uptime, 2 incidents (Degraded performance)Oct 14, 2026 – Oct 18, 2026: no incidentsOct 19, 2026: 96.77% uptime, 1 incident (Degraded performance)Oct 20, 2026 – Nov 2, 2026: no incidents
90 days ago99.107% average daily uptimeToday

Recent Kaleyra incidents

No incidents reported by Kaleyra in the last 90 days.

Full Kaleyra reliability report →

Recent Vonage Communications APIs incidents

Full Vonage Communications APIs reliability report →

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